Cigarette-making machine



May s, 192s.`

' 1,668,610 l. A. SEMI-:Nov

Y CIGARETTE MAKINGMACHINE Filed Dec. 2., 1925 3 sheets-sheet 1 May 8, 1928.

lsslelo' l. A. SEMI-:Nov

CIGARETTE MAKING MACHINE Filed Dec, 2, 1925 3 Sheets-Sheet 2 Semanal( /m/en fr' May 8, 1928. 1,668,610

. l. A. sEMENov CIGARETTE MAKING MACHINE Filed nec. 2, 1925 s sheets-s116616 Fig .1 [l IW" lil Patented May 8, 1928.

A i UNITED STA Tes PATENT OFFICE.

cien:in"r'rE-nuunimY MACHINE.V

Appnclation and member e, 192,5,` serial No, 72,737, fria in Germany December e, 1924.

AThe devices hitherto used lfor uniformly filling up with tobacco the pin covered surface of ,a picking cylinderrhave"various faults. Thus, for instance, the area of contact between the; picking; cylinder and the quantity of tobacco fed to it and the force pressing the latter against the former during the `operation of the' cylinder are not Constant and vary periodically7 which causes an unequal filling of the pin covered surface .of the picking cylinder. This drawback is found `rnore'particularly in thosedevices in common use. in which the rear wall of the box filled with tobacco performs a rocking motion towards and away from` the picking' cylinder. Owing to the fact that the rows of pins on the picking cylinder arearranged in parallel planes perpendicular to the axis of the cylinder, the said rows of pins after having formedgroeves in the massI of tobacco (see 6) will nolongen catch theV `tobacco fibres with the pin points, but will carry the fibres along bythe tobacco becom- Vingl wedged betweenthe rows of needles,

which` results in the tobacco being!y picked unevenly from the whole mass.` The second picking cylinder provided above the Ymain picking cylinder for the purpose of overcoming'` this drawbackV does not ,fulfill its purpose for the reason thatthepins on its surface usually have aniinclination opposite to their direction of rotation, so that they do not strip the tobacco` fibres from the surf face of the main picking: cylinder` but press them` between the pins ofthe main packing The present invention "overcomes the above r drawbacks of such V`devices and is characterized in this. that the tobacco is laid in the trough which is at richt angles to the-axis ort the pickingr cylinder and on the bottom of which an endlessband travels` on which. is rigidly iixerlfa plate'at right angles f to the trough-` which feedsthe tobacco to the surface of the pickingrcylinder uniformly andyunder invariable pressure. The trough together with the banda. the transverse plate andV the tobacco lying` in the troufrh are given a reciprocating motionjn theaxial direction of the pickingr cylinder. Consequently the pins` on thepicking cylindery .will

move in the. Contact plane of the tobacco and i the pin covered surfaceof the picking cylinder inthe paths. the `course of. which is due to the` motion resulting.. from the motion of the trough andthe rotation of the plcklng axis of the picking` cylinder and Fig. 4 a

plan view of the carriage V:for the transverse plate of the tobacco trough. Figs. 5 and 6 are diagrams showing the paths traced by the` pins ofthe pick-ing cylinder on 'the top baccoas "it is fed forward, Fig. 5 according to the present invention and Fig. 6 in the machine Aas used hitherto. Fig. 7 isa sectional vievv of a detail. y v y iIn the example shown in the dra-wings the picking cylinder 1 has a surface- 2 set with [pins` the pins being" inclined in the di- `rec-tion of rotation ofthe cylinder and the cylinderbeingr rotated about its shaft 3 in any suitable manner v`in the direct-ion lindicated by the arrow.. The side walls 6, y6

together with the endless band 5 form a trough into which the tobacco 4 is ledup to the line 25. The endless band 5 lies on rollers 8,` 8 n. which are heldin bearings 9.- 9 fixed to alcornmon `frame 10. On

the same frame are mounted standardsQl and to the latter the side walls 6, 6 are fixed. The plate `7 which stands transversely in the trough is slid' loosely into the grooves 1.1 of the carriages 12 (Figs. 1, 3 and 4) and by means of the latter the plate 7. can. be moved along;` the railslB, 13 which are fixed "to the standards 21. `A1ong the lower edge of the plate 'T are short pins or spikes 46 n (Fig. 7 which on the plate being: lowered,

penetrate into the band 5. thus ensuring that the relative position of the band 5 and the plate `7 cannot be altered.

The band 5` together with the plate?` are moved continuously forward along the trough'in the direction towards the picking cylinder l which movement may be effected in any suitable manner, for instance the positive movement of the roller 8` lying closest to the pi cking cylinder 1 being transmitted to them or by means of weights 14 suspended by cords 15 andguidedover the pulleys 16. 17 and 18. The other ends of the cords 15` are attached by hooks 19 to the hooks 2()y of the carriages 12.

tween .the said plate and the reserve plate 23. As soon as this space has been filled with tobacco up to the line 25, the hooks 19A are detached from the hooks 20 on the carriages 12 and the hooks 19 are connected to the hooks on the reserve carriagesI 24. The `plate 7 together with the carriages 12 is thereupon lifted out of the trough and placed in the position 'originally occupied by the wall 23, in which position it represents there-serve wall until the trough has been freshly filled with tobacco. f i

Above the stacked up tobacco near the sur- .face of the picking cylinder 1 is a Vset of flat .springs 28-which are screwed to the transverse barv27 fixed tothe side walls 6. The ends o'f the springs 2S are in the immediat-e proximity of the pins 2 on the cylinder and press quite lightly on the top oit the stacked tobacco 4 filling the space in the trough between the plate 7 and the surface of the cylinder 1. The object of these springs 28 is to prevent the tobacco lifting which might be caused by the action of the pins 2, thus ensuring that the size of the contact surface between the surface of the cylinder 1 and the stacked tobacco 4 shall be invariable. i

The frame 10 rest-s freely on the brackets 29 the projections 30 engaging in the corresponding recess in the brackets 29, so that theframe 10 can perform a reciprocating motion in the direction of the axis oi the picking cylinder 1. Y This motion is transmitted to the frame 10 `from the shaft 3 of the picking cylinder 1 by means of the toothed wheels 33 and 32 and the cam 31. The cam -31 has a suitable groove in itssurtace, in which is guided a roller 26 on one arm of the lever 34, the other forked arm of which is connected to theconnecting rod 35` which is attached in any suitable manner to the frame 10; Hence,` on the cylinder 1 rotating, the cam 31 will also rotate and the lever 34 will have a rocking motion imparted to it, which is transmitted by means of the connecting rod 35 to the frame 10.

e The same motion as that given to the frame is imparted to the trough filled with tobacco and all the arrangements connected thereto and owing to this motion the points of the pins trace paths in the plane of contact with the stacked tobacco 4, which continuously intersect one another (see Fig. 5).

Above the picking cylinder 1 is the equalizing drum 36 which is also provided with pins 37, the points of which with res ect to the surface of the drum are inc ined in the direction of rotation of the same. The drum 36 is rotated about its shaft 38 in any suitable manner in the direction indicated by the arrow and has for its object to remove the excess of tobacco fibres from the surface of the cylinder 1. From the surface of: the equalizing drum the tobacco .fibres are stripped by lncaus of the stripping drum 39 located above the drum 3G. The surface of the stripping drum 39 is also set with pins the points of which are inclined in the direction of rotation of the same, as indicated in Fig. 1 by the arrow. The drum 39 rotates about its shaft 41 .much more rapidly than the drum 436, so that with its pinsvit removes all the tobacco fibres from the pins of the drum 36.

The tobacco fibres which have been caught by the pins on the surface of the stripping drum 39 are usually removed by a beating drum 42 provided with radial pins and yfall down along the plate 43 back into the tobacco trough. The tobacco fibres remaining onthe pins of the cylinder are` removed by another beating drum 44 which is also pro'- vided with radial pins and fall into the vare removed trough 35, from where they from being further dealt with. ,Y

What I claim is: y

1. Apparatus for uniformly filling the pin covered surface of Va picking 'cylinder in a cigarette making machine with tobacco, comprising in combination with the said cylinder a. tobacco trough, an endless band capable of travelling at the bottom ofr the trough longitudinally of the same, a plate in the said trough and at right angles to the same, carriages at either side of the machine, grooves in the said carriages, into which the plate can be. slid, Vmeans at the lower edge of the plate for connecting it to the endless band, for preventing relative movement between the plateandthe band and means for imparting to the plate, the band and the tobacco laid in the trough a forward motion along the ,trough towards the surface of the picking cylinder, as and for the purpose set forth. y

2. Apparatus for uniformly filling the pin covered surface of a picking cylinder Yin a cigarette making machine with tobacco,vcom prising in combination with the said cylinder a tobacco trough,an endless `band capable of travelling at the bottom of the trough longitudinally of the same, a plate in the said trough and at right anglesv to the same, carriages at either sidel of the machine` grooves in the said carriages. into which the plate can be slid, means at the lower edge of the plate for connectingV it to the endless band, for preventing relative movement between the plate and the band, means for imparting to the plate, the band and the tobacco laid in the'trougha for-v lll Ward motion along the trough towards the surface of the picking cylinder, and a set of flat s rings located above the surface of the to acco in the trough, each 4spring lying in the direction of motion of the tobacco, for preventing the tobacco lifting in the trough, as set forth.

3. An apparatus as claimed in claim 2, and comprising means for imparting a reciprocating motion parallel to the axis of the picking cylinder' to the tobacco trough, the tobacco, the transverse plate, the endless band and the springs, as and for the purpose set forth.

4. An apparatus as claimed in claim 1 ing the tobacco from the first drum and a third drum having its surface set with radial pins for removing all the tobacco from the second drum and throwing it back into the tobacco trough, as set forth. y

5'. Apparatus for uniformly filling the pin covered surface of a picking cylinder in a. cigarette making machine with tobacco, compri/sing in combination with the said cylinder, a tobacco trough and means for pushing the tobacco towards the surface of the picking cylinder, said means comprising an endless band capable of travelling atthe bottom of said trough, a transverse plate in said trough and operatively connected to said endless band for preventing relative movement between the plate and the band and means for moving said band and plate, as and for the purposes set forth.

6. Apparatus for uniformly filling the pin-covered surface of a picking cylinder in a cigarette making machine with tobacco as set forth in claim 5, and comprising means for imparting to the trough a reciprocating motion parallel to the axis of the picking cylinder, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification.

iwAN ALExANDRowi sEMENov. 

